Home / 692,928.40-1,040,461.80-378,000.40

Finding the Fourth Proportional to 692,928.40, 1,040,461.80 and 378,000.40

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Solution

The fourth proportional to 692,928.40, 1,040,461.80 and 378,000.40 is: 567,583.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,928.40 : 1,040,461.80 = 378,000.40 : x
  2. Step 2: Convert to fraction form
    692,928.40/1,040,461.80 = 378,000.40/x
  3. Step 3: Cross multiply
    692,928.40x = 1,040,461.80 × 378,000.40
  4. Step 4: Simplify right side
    692,928.40x = 393,294,976,584.72
  5. Step 5: Solve for x
    x = 393,294,976,584.72/692,928.40
  6. Step 6: Final answer
    x = 567,583.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.